Device for feeding liquids.



J. F. PETERSON.

DEVICE FOR FEEDING LIQUIDS.

APPLICATION FILED FEB. 23. 1918.

Patented Dec. 31, 1918.

2 SHEETS-SHEET I.

J. F. PETERSON.

DEVICE FOR FEEDING'LIQUIDS.

APPLICATION FILED FEB. 23. 191B.

Patented Dc. 31, 1918.

2 $HEETS--SHEET 2. /0

- tively la JOHN F. PETERSON, OF CHICAO. II;JLINOIS.

DEVICE FOR FEEDING LIQ UIDS.

Application filed February 23. 1918. Serial No. 218,747.

To all whom it may concern Be it known that 1-, JOHN F. PE'rnRsoN, acitizen of the Government of Russia, re-

.sidin at Chicago, in the county of Cook and tate of Illinois, haveinvented certain new and useful Improvements in Devices for FeedingLiquids, of which the following is a specification.

My invention relates to means for feeding a constant quantity of liquidfrom areservoir in a given period of time, irrespective of the quantityof liquid therein. I

One of the objects of my invention is to provide a meansto feed aconstant quantity of liquid in a-given time from a reservoir, bygravitational operation, which is substantially unaffected by variationin the head, or ressure affected by the varying head, oft e'coluinn ofliquid.

-' My liquid feeding'devioe is especially applic able foruse 'inoiloups, wherein a relasupply of lubricating 'hquld,

such as 0' to be contained, and which is to be fed therefrom, drop bydrop, at short intervals. It may however be used for other purposeswithout material change of structure. i

Other nloiectlis ofmy invention Wlll become readily apparent, to personsskilled in the art from a consideration of the following descriptionwhen taken in conjunction with'the rawings, wherelnz- Figure 1 is acentral vertical section of the device.

Fig. 2 is a broken-away elevation thereof.

' Fig. 3 is a top planview of the device.

Fig. A is a section taken on line H of i1 all the views the samereference characters are employed to indicate similar parts.

The invention c'ontains essentially two reservoirs, a main or superposedreservoir, within which to contain a relatively large-quanerably smallerin vertical extent and preferably immediately below the main reservoir,from which the liquid is to be directly fed to the part or device to belubricated.

In the embodiment chosen. for illustrating one form that my inventionmaytake, 10 is the main reservoir, consisting of a glass.

cylinder 11, provided with heads 12 and 13.

' Axially of the cylinder is a tube 14, which is screw threaded at eachend, as at 15' and 16.

The lower end of the tube is threaded into the head 13 to hold thecylinders in place and Specification of Letters Patent.

Patented Dec. 31, 1918.

between the main cylinder and the head is a threaded engagement with thehead 13, as

at 25. Packin rings 26 and 27 are contained between 51c respective endsof the cylinder 21 and the heads 22 and13. The float 28 is carried in.the sub-reservoir 20 and secured thereto is a tube 29 which has freeaxial telescopic .movement in the tube 14:. Theupper end of the tube 29coiiperates with a port 30 made in the lowerend of the tube 14, 'so thatwhen the float is at its lowest position the ,port 30 willbe o ened andwhen the float-is at the position s own in Fig. 1 theport 30 will beclosed by the interposition of the tube 29. When the-port is open, oilwill pass from the reservoir 10 into the reservoir 20 and raise thefloat and thereby -thetube 29 is raised-to close the port so that asubstantially constant quantity of oil is carried in the sub-reservoir20.

' Apertures 31 are made in the lower end of the tube 14 so that thechamber within the reservoir 20may communicate through the tube, withthe upper part of the chamber in the reservoir 10, there being a port oropening in the tube 14 provided for this purpose. The upper part of thereservoir 10 finds communication with the atmosphere through the opening33, which may be loosely covered by a slide 34; to prevent the dust fromentering the chamber and which opening is used for the purpose offilling the chamber with oil. The slide 3% has a ring bearing around theprojecting end of the tube-[14.

In the lower wall22 of the reservoir 20, is a valve port plug 35. Theplug .35 is ax1- ally perforated; as; at 36, and is provided on itsupperl eud. with a port 37 for a needle valve 38. lhedvalve 38is-.:;ormed\on the lower end Fof the rod 39, which extends through bothchambers and the tube bi, and on its upperend it is pivoted to a camlever 40, as at 41. A cap 42 screws over the upper end of the tube 1d,and is the mean for adjusting the'efiect of the cam lever 40 upon theneedle valve 38 when the lever. occupies its verticai position, as shownin dotted lines as at The cap 42 is corrugated, as at 43, and a springclip 44., which is provided with an annular part 45, serves as a meansfor holding the cap 40 in its adjusted position. The rin of the clip 44surrounds the tube 14: and with the slide 34 it is held in place on thecover 12 by a nut 46. The spring 47 surrounds the rod 39 and abutsagainst the end wall of the cap. The lower end of the spring 47rests'against a washer 48 that is held on the rod 39 by a pin 49. Thespring yieldingly holds the needle valve in its lowermosl position. I

When the lever 40 is raised to dotted line position,as shown in Fig. 1,the needle valve 38 is thereby raised from the port 37 and opens thepassage ways 36 to the extent that it is raised. If it is desired toopen the valve to a greater extent, the can 42 is raised by turning itanti-clockwise and the clip 44: will hold it and prevent it from turningfrom its adjusted position. By this means the cam end of the lever 40will raise the needle valve 38 to a greater or less extent, and thus theeffect of the needle valvemay be regulated.

The oil from the sub-reservoir 20 will drop through the port 37 and theopening 36, into a small cylinder 50 thereb 210w. The cylinder consistsof a casing 51 which is screwed on a threaded hub 52 that projectsdownwardly from the lower wall 22 of the reservoir 20. The casing isprovided with openings 53 through which the oil, as it drops through thecylinder, may be observed.

A glass tube 54: is contained within the cylinder and the lower end ofthe cylinder is screw threaded, as at 55, whereby the device, as awhole, may be connected to a part to be lubricated.

The tube 29 projects below the float 28, as at 56, so as to support thefloat from actual contact with the upper surface of the plate 22, so asto prevent it from sticking to the plate, should it, at any time. movedownwardly in contact therewith. Projections 57, are provided in theupper wall of the float, so s to prevent the upper wall of the floatfrom, in like manner, sticking to the plate 15, should the float at anytime be brought into contact therewith.

Whereas lhave herein shown a single embodiment of my invention, for thepurpose of clear disclosure, it is manifest that manychanges may be madein the general arrangement and configuration of the parts within thescope of the appended claims.

Having described my invention. what I claim i 1. A device of thecharacter described comprising a supply reservoir; a co-axiallv arrangedsub-reservoir; a float in the latter reservoir and a valve, operable bythe float. to control communication between the reservoirs to maintainconstant head in the latter reservoir.

2. A device of the character described comprising a supply reservoir; :1co-axiallv arranged sub-reservoir; a float in the latter reservoir; avalve, operable by the float. to control communication between thereservoirs and to maintain a constant head in the latter reservoir; aneedle valve having a seat in the lower wall of the sub-reservoir andmeans on the top of thesupply reservoir to adjust the needle valve.

3. A device of the character described comprising a supply reservoir: asub-reservoir; a t be extending through the supply reservoir. into thesub-reservoir. having a port opening into the supply reservoir; a

float in the sub-reservoir; a tube carried by said float telescopicallymovable in the first mentioned tube to close and open said port, in saidtube, to maintain constant liquid supply in the sub-reservoir.

l. A device of the character described comprising a supply reservoir; asub-reservoir; a tube extending through the supply reservoir into thesub-reservoir, having a port opening into the supply reservoir; a floatin the sub-reservoir; a tube carried by said float telescopicallymovable in the first mentioned tube to close and open the port in saidtube to maintain constant liquid supply in the sub-reservoir; aneedlevalve extending through both tubes and reservoirs to control a port inthe bottom wall of said sub-reservoir.

5. A device of the character described comprising a supply reservoir; asub-reservoir; a tube extending through the supply reservoir into thesub-reservoir, having a port opening into the supply reservoir: a floatin the sub-reservoir; a tube carried by said float, telescopicallymovable in the firs mentioned tube to close and open the port in thesaid tube, supply in the sub-reservoir; a needle'valvc extending throughboth tubes and reservoirs to control a port opening from the subreservoir; a threaded plug containing, a passage way terminating in aneedle valve port, vertically adjustable in the bottom wall of saidsubreservoir, and means, on the top of said supply reservoir, foradjusting extent of openingot said port by said needle valve. I A

- In testimony whereoi- I hereunto set hand.

JOHN F. PETERSON.

the

